Puriketsu Kyonyuu ni Sodatta Shinseki no Musume-tachi ga Kuso Shikokatta no de Aherasete Itsudemo Yareru Haramase Onaho ni Shita Ken | プリケツ巨乳に育った親戚の娘たちがクソシコかったのでアヘらせていつでもヤれる孕ませオナホにした件

Being made a fool by girls in his hometown, the protagonist assails one of them with his dick. Although he thought his life would end after that, the girl falls in love with his dick, becoming is pet! He starts doing the same thing with the other girls, creating his own impregnation harem!